P92 Echo Super
Maintenance Manual
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Front and aft spars are complete with wing-to-fuselage attachment fittings (7). Wing-to-strut attachment fittings are located
approximately in the middle of main spars (8). Aileron uses "piano-hinges" type MS 20001-4 for direct attachment of
aileron spar to wing spar. Flap hinges are external to wing torsion box and feature SKF GE10E type ball bearings.
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Figure 4-2 Wing
structure
The aileron is constructed of an aluminum spar to which a formed sheet metal leading edge and metal ribs are attached;
Dacron synthetic material wrap-around aileron structure. Flaps are constructed of a center spar to which front and rear ribs
are joined; aluminum skin panels wrap-around flap structure.
Wing tips are molded epoxy resin, fiberglass reinforced. At the inboard end of half-wing's leading edge is an integrated
aluminum fuel tank with individual filler cap.
Fuel tanks vent through light alloy tubes in the area immediately below the tanks.
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4.1.1 Installing and reinstalling the wing
Procedure for removal of wing and strut is as follows:
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Drain fuel tank using drain tank and closing opposite side tank fuel circuit
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Remove panel inside cabin to access and disconnect fuel line
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For the right wing, disconnect stall-warning system wires
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Disconnect position lights wiring if present
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Disconnect flap control (see fig. 4-3) by removing roller bearings (7) that link push-pull rods (6) to
flap control plate
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Disconnect aileron control (see fig. 4-4) by removing pins (4) that connect the small bar (3) to the
pushrods (5)
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While supporting the
wing
‟
s
end (not from wingtip), release
strut
‟
s
upper pin, then release lower pin
and remove strut
!
While supporting the half-wing from below the root area, release the two wing-to-fuselage attachment
pins. To expedite release of aft pin, keep flap lifted, then remove wing
!
Replace pins in their original location and cap fuel lines
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Reverse above procedure for reinstallation paying close attention to tighten
strut
‟
s
bolts to
recommended value M8 bolt torque 24.6 Nm (~ 218 inch pounds)
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28
Revision Date:
10-29-2007
Revision Number:
3.01
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